Gavins Point Dam
![](/Images/godic/202501/14/Gavins-point-dam14100.jpg")
![](/Images/godic/202501/14/USA_South_Dakota_location_map.svg4100.png")
![Tom Brokaw greeting the 20,000th visitor to the dam in 1958. Brokaw was a tour guide at the dam.](/Images/godic/202501/14/Brokaw-gavinspoint4100.jpg")
![The dam releasing a record 150,000 cubic feet per second (4,200 m3/s) of water on June 14, 2011 as a result of the 2011 Missouri River Floods. The release was more than twice the previous record set in 1997.[2]](/Images/godic/202501/14/Gavins-record4100.jpg")
Gavins Point Dam is a hydroelectric dam on the Missouri River in the U.S. states of Nebraska and South Dakota. Built from 1952 to 1957, it impounds Lewis and Clark Lake. The dam is on the Nebraska-South Dakota border, west of Yankton, South Dakota. During the 2011 Missouri River Flood the dam was damaged by debris and a significant portion of rocks were dislodged from its upstream side. The U.S. Army Corps of Engineers soon began repairs the dam and its spillway gates. Pressure sensors were also installed in concrete portion of the dam.